172063540 has 24 divisors (see below), whose sum is σ = 394182432. Its totient is φ = 62568480.

The previous prime is 172063519. The next prime is 172063589. The reversal of 172063540 is 45360271.

It is a junction number, because it is equal to n+sod(n) for n = 172063499 and 172063508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390834 + ... + 391273.

It is an arithmetic number, because the mean of its divisors is an integer number (16424268).

Almost surely, 2^172063540 is an apocalyptic number.

172063540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172063540 is an abundant number, since it is smaller than the sum of its proper divisors (222118892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172063540 is a wasteful number, since it uses less digits than its factorization.

172063540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782127 (or 782125 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 172063540 is about 13117.2992647115. The cubic root of 172063540 is about 556.1982497831.

The spelling of 172063540 in words is "one hundred seventy-two million, sixty-three thousand, five hundred forty".